Allegheny River — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in the Allegheny River, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in the Allegheny River today is 20.4°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Water Temperature Chart Over the Last 30 Days
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUN 23 | 19.5°C | 18.5°C | |
| JUN 24 | 19.5°C | 18.5°C | |
| JUN 25 | 19.4°C | 18.5°C | |
| JUN 26 | 19.6°C | 18.5°C | |
| JUN 27 | 19.4°C | 18.5°C | |
| JUN 28 | 19.5°C | 18.5°C | |
| JUN 29 | 19.8°C | 18.5°C | |
| JUN 30 | 20.4°C | 18.5°C | |
| JUL 1 | 21.0°C | 20.4°C | |
| JUL 2 | 21.0°C | 20.5°C | |
| JUL 3 | 21.0°C | 20.5°C | |
| JUL 4 | 21.0°C | 20.5°C | |
| JUL 5 | 21.0°C | 20.6°C | |
| JUL 6 | 21.0°C | 20.6°C | |
| JUL 7 | 21.0°C | 20.6°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 0°C | 5°C | 9°C |
| February | 0°C | 5°C | 9°C |
| March | 0°C | 6°C | 11°C |
| April | 5°C | 10°C | 16°C |
| May | 8°C | 13°C | 21°C |
| June | 14°C | 19°C | 23°C |
| July | 17°C | 21°C | 25°C |
| August | 17°C | 21°C | 23°C |
| September | 11°C | 16°C | 21°C |
| October | 8°C | 14°C | 19°C |
| November | 3°C | 8°C | 16°C |
| December | 1°C | 5°C | 8°C |
Allegheny River: Water Temperature by Location
Allegheny River: Weather Forecast
July 1
July 2
July 3
July 4
Location & Local Information
Source:
• location Allegany Township, Pennsylvania, near Coudersport, Pennsylvania at the corner of Ben Green and Cobb Hill Roads
• coordinates 41°52′22″N 77°52′30″W[1]
• elevation 2,450 ft (750 m)[2]
Mouth:
• location Ohio River at Pittsburgh, Pennsylvania
• elevation 712 ft (217 m)
Length 325 mi (523 km)
The Allegheny River, originating in Pennsylvania and flowing into New York before merging with the Monongahela River to form the Ohio River in Pittsburgh, is known for its scenic beauty and recreational opportunities. The river’s water temperature varies significantly throughout the year due to the region’s temperate climate. In summer, temperatures can reach 70°F to 80°F (21°C to 27°C), creating favorable conditions for water activities. However, in the colder months, water temperatures often fall below 40°F (4°C), reflecting the chill of the surrounding air.
Swimming in the Allegheny River is possible but not commonly pursued due to its currents, boat traffic, and water quality concerns in some areas. Popular recreational activities include kayaking, canoeing, and fishing, which are well-supported by the river’s numerous access points and parks. For swimming, individuals often opt for nearby lakes or designated swimming spots along the river where conditions are safer and the water is calmer.
Those considering a dip in the Allegheny should exercise caution, especially in areas with unpredictable currents or debris. Checking local advisories and sticking to well-known recreational zones can enhance safety and enjoyment. The river’s natural surroundings and diverse ecosystems make it a valuable destination for outdoor enthusiasts, even if swimming is not its primary draw.